🚨 Do you upload Excel files to AI tools like ChatGPT, Gemini, Claude, or Copilot? Make sure your sensitive data is protected first! 🛡️

Introducing this simple yet powerful 🔐 Data Masking Tool built using Python and Streamlit — perfect for business users, analysts, auditors, and anyone concerned about data privacy.

 What It Does: 

✅ Upload Excel CSV (.csv) files

✅ Select and mask sensitive columns (names, emails, etc.) 🎭

✅ Download clean, masked files

✅ No coding required – easy point-and-click UI

✅ Works fully offline on your PC 💻

✅ Or try it online on Streamlit Cloud 🌐

 Built With: 

🐍 Python

🎈 Streamlit

📊 Pandas, NumPy

📝 XlsxWriter, OpenPyXL

📈 Plotly 

 Who’s It For?

Internal auditors & risk professionals

Data analysts and finance teams

Anyone uploading data into LLMs & AI tools

Privacy-conscious users who care about confidentiality 🔒

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